Fix undefined behaviour. * lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to 'unsigned int', to avoid shift operations on 'int'. * lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size. * tests/test-count-leading-zeros.c (main): Use a random number that has as many bits as TYPE, not only 2*15 or 2*31 bits. * tests/test-count-trailing-zeros.c (main): Likewise. * tests/test-count-one-bits.c (main): Likewise. * tests/test-memmem.c: Don't include "null-ptr.h". (main): Use zerosize_ptr() instead of null_ptr(). * modules/memmem-tests (Files): Remove tests/null-ptr.h.

Description:
Find a POSIX-conforming shell.

Files:
m4/posix-shell.m4

Depends-on:

configure.ac:
gl_POSIX_SHELL

Makefile.am:
##Sample usage of posix-shell module:
#script: script.in
#	rm -f $@-t $@
#	sed -e 's#@''PREFERABLY_POSIX_SHELL''@#$(PREFERABLY_POSIX_SHELL)#g' \
#	    -e 's#@''POSIX_SHELL''@#$(POSIX_SHELL)#g' \
#	    -e $(srcdir)/$@.in >$@-t
#	chmod a+x $@-t
#	mv $@-t $@
#EXTRA_DIST += script.in
#MOSTLYCLEANFILES += script script-t

Include:

License:
GPLed build tool

Maintainer:
Paul Eggert